Cheapest return flights from Washington to London in June from $851

AirHint found the following cheapest return flights from Washington (IAD) to London (LHR) in June 2025 (see full year).

Return flights

30 Jun - 31 Jul British Airways
29 Jun - 09 Jul Icelandair
30 Jun - 20 Jul Brussels Airlines
30 Jun - 11 Jul Brussels Airlines
30 Jun - 31 Jul British Airways direct
30 Jun - 16 Jul Lufthansa
29 Jun - 10 Jul Scandinavian Airlines
30 Jun - 09 Jul Icelandair
30 Jun - 03 Jul Air Canada
30 Jun - 14 Jul SWISS
18 Jun - 24 Jun Air Canada
23 Jun - 29 Jun Scandinavian Airlines
23 Jun - 26 Jun Porter Airlines (Canada) Ltd
18 Jun - 25 Jun Air Canada
19 Jun - 23 Jun Royal Air Maroc
23 Jun - 30 Jun Scandinavian Airlines
19 Jun - 26 Jun Royal Air Maroc
22 Jun - 26 Jun Icelandair
24 Jun - 29 Jun Scandinavian Airlines
19 Jun - 22 Jun Royal Air Maroc

Also check the deals for one-way flights from Washington to London in June.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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